Watch JoJo no Kimyou na Bouken: Diamond wa Kudakenai online English Dub. Other names: JoJo no Kimyou na Bouken Part 4: Diamond wa Kudakenai, JoJo’s Bizarre Adventure Part 4: Diamond Is Unbreakable. Synopsis: The coastal town of Morioh is plagued by the “Bow and Arrow,” an ancient artifact which manifests latent stand abilities in criminals and ordinary folk alike. At the same time as they are dealing with the huge influx of stand users—both good and bad—in Morioh, high schooler Jousuke Higashikata and his friends are searching for the culprit of a series of homicides. Sources: Myanimelist, Wikipedia